151
|
Scheepstra M, Hekking KF, van Hijfte L, Folmer RH. Bivalent Ligands for Protein Degradation in Drug Discovery. Comput Struct Biotechnol J 2019; 17:160-176. [PMID: 30788082 PMCID: PMC6369262 DOI: 10.1016/j.csbj.2019.01.006] [Citation(s) in RCA: 49] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2018] [Revised: 01/16/2019] [Accepted: 01/19/2019] [Indexed: 01/19/2023] Open
Abstract
Targeting the "undruggable" proteome remains one of the big challenges in drug discovery. Recent innovations in the field of targeted protein degradation and manipulation of the ubiquitin-proteasome system open up new therapeutic approaches for disorders that cannot be targeted with conventional inhibitor paradigms. Proteolysis targeting chimeras (PROTACs) are bivalent ligands in which a compound that binds to the protein target of interest is connected to a second molecule that binds an E3 ligase via a linker. The E3 protein is usually either Cereblon or Von Hippel-Lindau. Several examples of selective PROTAC molecules with potent effect in cells and in vivo models have been reported. The degradation of specific proteins via these bivalent molecules is already allowing for the study of biochemical pathways and cell biology with more specificity than was possible with inhibitor compounds. In this review, we provide a comprehensive overview of recent developments in the field of small molecule mediated protein degradation, including transcription factors, kinases and nuclear receptors. We discuss the potential benefits of protein degradation over inhibition as well as the challenges that need to be overcome.
Collapse
Key Words
- ABCB1, ATP-binding cassette sub-family B member 1
- AD, Alzheimer's disease
- AHR, aryl hydrogen receptor
- ALK, anaplastic lymphoma kinase
- Aβ, amyloid-β
- BET, bromodomain and extra-terminal
- BTK, Bruton's tyrosine kinase
- Bcl6, B-cell lymphoma 6
- Bivalent ligand
- Brd4, bromodomain 4
- CDK9, cyclin dependent kinase 9
- CK2, Casein kinase 2
- CLIPTAC, click-formed proteolysis targeting chimera
- CRBN, Cereblon
- Chimera
- DC50, the compound concentration that results in 50% target protein degradation
- DHODH, Dihydroorotate dehydrogenase
- Degrader
- ERK1, extracellular signal-regulated kinase 1
- ERRα, estrogen-related receptor alpha
- ERα, estrogen receptor alpha
- EZH2, enhancer of zeste homolog 2
- FLT3, FMS-like tyrosine kinase-3
- FRS2, fibroblast growth factor receptor substrate 2
- GCN5, general control nonderepressible 5
- GPCR, G-protein coupled receptor
- GST, glutathione S-transferase
- HDAC, histone deacetylase
- HTS, high-throughput screening
- MDM2, mouse double-minute 2 homolog
- MetAP-2, methionine aminopeptidase-2
- PCAF, P300/CBP-associated factor
- PEG, polyethylene glycol
- PI3K, phosphatidylinositol-3-kinase
- PLK-1, polo-like kinase 1
- POI, protein of interest
- PROTAC
- PROTAC, proteolysis targeting chimeras
- Proteasome
- Protein degradation
- RAR, retinoic acid receptor
- RIPK2, receptor-interacting serine/threonine-protein kinase 2
- RTK, receptor tyrosine kinase
- SARM, selective androgen receptor modulator
- SNIPER, specific and non-genetic IAP-dependent protein eraser
- TBK1, TANK-Binding kinase 1
- TRIM24, tripartite motif-containing 24 (also known as TIF1α)
- VHL, Von Hippel-Lindau
- cIAP1, cellular inhibitor of apoptosis protein
Collapse
|
152
|
Zou Y, Ma D, Wang Y. The PROTAC technology in drug development. Cell Biochem Funct 2019; 37:21-30. [PMID: 30604499 PMCID: PMC6590639 DOI: 10.1002/cbf.3369] [Citation(s) in RCA: 168] [Impact Index Per Article: 33.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2018] [Revised: 10/30/2018] [Accepted: 10/30/2018] [Indexed: 12/28/2022]
Abstract
Currently, a new technology termed PROTAC, proteolysis targeting chimera, has been developed for inducing the protein degradation by a targeting molecule. This technology takes advantage of a moiety of targeted protein and a moiety of recognizing E3 ubiquitin ligase and produces a hybrid molecule to specifically knock down a targeted protein. During the first decade, three pedigreed groups worked on the development of this technology. To date, this technology has been extended by different groups, aiming to develop new drugs against different diseases including cancers. This review summarizes the contributions of the groups for the development of PROTAC. SIGNIFICANCE OF THE STUDY: This review summarized the development of the PROTAC technology for readers and also presented the author's opinions on the application of the technology in tumor therapy.
Collapse
Affiliation(s)
- Yutian Zou
- The State Laboratory of Membrane Biology, Department of Basic Medicine, School of Medicine, Tsinghua University, Beijing, China.,Department of Science, Brookwood High School, Snellville, Georgia
| | - Danhui Ma
- The State Laboratory of Membrane Biology, Department of Basic Medicine, School of Medicine, Tsinghua University, Beijing, China
| | - Yinyin Wang
- The State Laboratory of Membrane Biology, Department of Basic Medicine, School of Medicine, Tsinghua University, Beijing, China
| |
Collapse
|
153
|
Steinebach C, Kehm H, Lindner S, Vu LP, Köpff S, López Mármol Á, Weiler C, Wagner KG, Reichenzeller M, Krönke J, Gütschow M. PROTAC-mediated crosstalk between E3 ligases. Chem Commun (Camb) 2019; 55:1821-1824. [DOI: 10.1039/c8cc09541h] [Citation(s) in RCA: 55] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Small-molecule heterobifunctional degraders can effectively control protein levels and are useful research tools.
Collapse
|
154
|
Pei H, Peng Y, Zhao Q, Chen Y. Small molecule PROTACs: an emerging technology for targeted therapy in drug discovery. RSC Adv 2019; 9:16967-16976. [PMID: 35519875 PMCID: PMC9064693 DOI: 10.1039/c9ra03423d] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2019] [Accepted: 05/14/2019] [Indexed: 12/27/2022] Open
Abstract
An overview of the latest developments in PROTAC technology and the possible directions of this approach is presented.
Collapse
Affiliation(s)
- Haixiang Pei
- Shanghai Key Laboratory of Regulatory Biology
- The Institute of Biomedical Sciences
- School of Life Sciences
- East China Normal University
- Shanghai 200241
| | - Yangrui Peng
- Shanghai Key Laboratory of Regulatory Biology
- The Institute of Biomedical Sciences
- School of Life Sciences
- East China Normal University
- Shanghai 200241
| | - Qiuhua Zhao
- School of Chemistry and Molecular Engineering
- East China Normal University
- Shanghai 200241
- China
| | - Yihua Chen
- Shanghai Key Laboratory of Regulatory Biology
- The Institute of Biomedical Sciences
- School of Life Sciences
- East China Normal University
- Shanghai 200241
| |
Collapse
|
155
|
Moon S, Lee BH. Chemically Induced Cellular Proteolysis: An Emerging Therapeutic Strategy for Undruggable Targets. Mol Cells 2018; 41:933-942. [PMID: 30486612 PMCID: PMC6277563 DOI: 10.14348/molcells.2018.0372] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2018] [Revised: 10/28/2018] [Accepted: 10/30/2018] [Indexed: 01/12/2023] Open
Abstract
Traditionally, small-molecule or antibody-based therapies against human diseases have been designed to inhibit the enzymatic activity or compete for the ligand binding sites of pathological target proteins. Despite its demonstrated effectiveness, such as in cancer treatment, this approach is often limited by recurring drug resistance. More importantly, not all molecular targets are enzymes or receptors with druggable 'hot spots' that can be directly occupied by active site-directed inhibitors. Recently, a promising new paradigm has been created, in which small-molecule chemicals harness the naturally occurring protein quality control machinery of the ubiquitin-proteasome system to specifically eradicate disease-causing proteins in cells. Such 'chemically induced protein degradation' may provide unprecedented opportunities for targeting proteins that are inherently undruggable, such as structural scaffolds and other non-enzymatic molecules, for therapeutic purposes. This review focuses on surveying recent progress in developing E3-guided proteolysis-targeting chimeras (PROTACs) and small-molecule chemical modulators of deubiquitinating enzymes upstream of or on the proteasome.
Collapse
|
156
|
Burslem GM, Song J, Chen X, Hines J, Crews CM. Enhancing Antiproliferative Activity and Selectivity of a FLT-3 Inhibitor by Proteolysis Targeting Chimera Conversion. J Am Chem Soc 2018; 140:16428-16432. [DOI: 10.1021/jacs.8b10320] [Citation(s) in RCA: 90] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- George M. Burslem
- Department of Molecular, Cellular and Developmental Biology, Yale University, New Haven, Connecticut 06511, United States
| | - Jayoung Song
- Department of Molecular, Cellular and Developmental Biology, Yale University, New Haven, Connecticut 06511, United States
| | - Xin Chen
- Arvinas Inc., New Haven, Connecticut 06511, United States
| | - John Hines
- Department of Molecular, Cellular and Developmental Biology, Yale University, New Haven, Connecticut 06511, United States
| | - Craig M. Crews
- Department of Molecular, Cellular and Developmental Biology, Yale University, New Haven, Connecticut 06511, United States
- Departments of Chemistry and Pharmacology, Yale University, New Haven, Connecticut 06520, United States
| |
Collapse
|
157
|
Abstract
Several anticancer agents are associated with significant cardiotoxicity. The list of cardiotoxic cancer therapeutic agents includes anthracyclines, trastuzumab, alkylating agents, antimetabolites, which have been in use for decades; and recently introduced anticancer therapies such as tyrosine kinase inhibitors, angiogenesis inhibitors, checkpoint inhibitors and proteasome inhibitors. Cardiac imaging using echocardiography, nuclear imaging techniques, and magnetic resonance (MR) imaging can help in the early detection of chemotherapy-related cardiotoxicity. This can prevent the morbidity and mortality resulting from the cardiotoxicity of these agents. Further research is needed to improve our understanding of the underlying mechanism of their cardiotoxicity and to develop newer preventive and therapeutic strategies for chemotherapy related cardiotoxicity.
Collapse
Affiliation(s)
- Diwakar Jain
- a Section of Cardiovascular Medicine, Department of Medicine , Westchester Medical Center, New York Medical College , Valhalla , NY , USA
| | - Wilbert Aronow
- a Section of Cardiovascular Medicine, Department of Medicine , Westchester Medical Center, New York Medical College , Valhalla , NY , USA
| |
Collapse
|
158
|
Chen H, Chen F, Liu N, Wang X, Gou S. Chemically induced degradation of CK2 by proteolysis targeting chimeras based on a ubiquitin-proteasome pathway. Bioorg Chem 2018; 81:536-544. [PMID: 30245235 DOI: 10.1016/j.bioorg.2018.09.005] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2018] [Revised: 09/05/2018] [Accepted: 09/06/2018] [Indexed: 02/08/2023]
Abstract
As a ubiquitous, highly pleiotropic and constitutively active serine/threonine protein kinase, casein kinase 2 (CK2) is closely associated with tumorigenesis by its overexpression in cancer cells. Here we report several proteolysis targeting chimeras (PROTACs) via "click reaction" to connect a CK2 inhibitor (CX-4945) and pomalidomide for degradation of CK2 protein. Among them, compound 2 degraded CK2 in a dose and time-dependent manner, and kept CK2 at a low basal level by recruiting ubiquitin-proteasome system. The degradation of CK2 resulted in the reduced phosphorylation of Akt and the up-regulation of p53. As a CK2 protein degrader, 2 showed the analogous cytotoxicity to CX-4945 but with a quite different mechanism of action from the CK2 inhibitor, hinting that degradation of CK2 proteins by PROTACs is a potential way for cancer treatments.
Collapse
Affiliation(s)
- Hong Chen
- Pharmaceutical Research Center and School of Chemistry and Chemical Engineering, Jiangsu Province Hi-Tech Key Laboratory for Biomedical Research, Southeast University, Nanjing 211189, PR China
| | - Feihong Chen
- Pharmaceutical Research Center and School of Chemistry and Chemical Engineering, Jiangsu Province Hi-Tech Key Laboratory for Biomedical Research, Southeast University, Nanjing 211189, PR China
| | - Nannan Liu
- Pharmaceutical Research Center and School of Chemistry and Chemical Engineering, Jiangsu Province Hi-Tech Key Laboratory for Biomedical Research, Southeast University, Nanjing 211189, PR China
| | - Xinyi Wang
- Pharmaceutical Research Center and School of Chemistry and Chemical Engineering, Jiangsu Province Hi-Tech Key Laboratory for Biomedical Research, Southeast University, Nanjing 211189, PR China
| | - Shaohua Gou
- Pharmaceutical Research Center and School of Chemistry and Chemical Engineering, Jiangsu Province Hi-Tech Key Laboratory for Biomedical Research, Southeast University, Nanjing 211189, PR China.
| |
Collapse
|
159
|
Shibata N, Shimokawa K, Nagai K, Ohoka N, Hattori T, Miyamoto N, Ujikawa O, Sameshima T, Nara H, Cho N, Naito M. Pharmacological difference between degrader and inhibitor against oncogenic BCR-ABL kinase. Sci Rep 2018; 8:13549. [PMID: 30202081 PMCID: PMC6131351 DOI: 10.1038/s41598-018-31913-5] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2018] [Accepted: 08/29/2018] [Indexed: 01/09/2023] Open
Abstract
Chronic myelogenous leukemia (CML) is characterized by the oncogenic fusion protein, BCR-ABL protein kinase, against which clinically useful inhibitors have been developed. An alternative approach to treat CML is to degrade the BCR-ABL protein. Recently, potent degraders against BCR-ABL have been developed by conjugating dasatinib to ligands for E3 ubiquitin ligases. Since the degraders contain the dasatinib moiety, they also inhibit BCR-ABL kinase activity, which complicates our understanding of the impact of BCR-ABL degradation by degraders in CML growth inhibition. To address this issue, we chose DAS-IAP, as a potent BCR-ABL degrader, and developed a structurally related inactive degrader, DAS-meIAP, which inhibits kinase activity but does not degrade the BCR-ABL protein. DAS-IAP showed slightly weaker activity than DAS-meIAP in inhibiting cell growth when CML cells were treated for 48 h. However, DAS-IAP showed sustained growth inhibition even when the drug was removed after short-term treatment, whereas CML cell growth rapidly resumed following removal of DAS-meIAP and dasatinib. Consistently, suppression of BCR-ABL levels and downstream kinase signaling were maintained after DAS-IAP removal, whereas kinase signaling rapidly recovered following removal of DAS-meIAP and dasatinib. These results indicate that BCR-ABL degrader shows more sustained inhibition of CML cell growth than ABL kinase inhibitor.
Collapse
Affiliation(s)
- Norihito Shibata
- Divisions of Molecular Target and Gene Therapy Products, National Institute of Health Sciences, 3-25-26 Tonomachi, Kawasaki-ku, Kawasaki, Kanagawa, 210-9501, Japan
| | - Kenichiro Shimokawa
- Pharmaceutical Research Division, Takeda Pharmaceutical Co. Ltd., 2-26-1 Muraoka-Higashi, Fujisawa, Kanagawa, 251-8555, Japan
| | - Katsunori Nagai
- Pharmaceutical Research Division, Takeda Pharmaceutical Co. Ltd., 2-26-1 Muraoka-Higashi, Fujisawa, Kanagawa, 251-8555, Japan.,Axcelead Drug Discovery Partners, Inc., 2-26-1 Muraoka-Higashi, Fujisawa, Kanagawa, 251-0012, Japan
| | - Nobumichi Ohoka
- Divisions of Molecular Target and Gene Therapy Products, National Institute of Health Sciences, 3-25-26 Tonomachi, Kawasaki-ku, Kawasaki, Kanagawa, 210-9501, Japan
| | - Takayuki Hattori
- Divisions of Molecular Target and Gene Therapy Products, National Institute of Health Sciences, 3-25-26 Tonomachi, Kawasaki-ku, Kawasaki, Kanagawa, 210-9501, Japan
| | - Naoki Miyamoto
- Pharmaceutical Research Division, Takeda Pharmaceutical Co. Ltd., 2-26-1 Muraoka-Higashi, Fujisawa, Kanagawa, 251-8555, Japan
| | - Osamu Ujikawa
- Pharmaceutical Research Division, Takeda Pharmaceutical Co. Ltd., 2-26-1 Muraoka-Higashi, Fujisawa, Kanagawa, 251-8555, Japan.,Axcelead Drug Discovery Partners, Inc., 2-26-1 Muraoka-Higashi, Fujisawa, Kanagawa, 251-0012, Japan
| | - Tomoya Sameshima
- Pharmaceutical Research Division, Takeda Pharmaceutical Co. Ltd., 2-26-1 Muraoka-Higashi, Fujisawa, Kanagawa, 251-8555, Japan
| | - Hiroshi Nara
- Pharmaceutical Research Division, Takeda Pharmaceutical Co. Ltd., 2-26-1 Muraoka-Higashi, Fujisawa, Kanagawa, 251-8555, Japan.,The Pharmaceutical Society of Japan, 2-12-15 Shibuya, Shibuya-ku, Tokyo, 150-0002, Japan
| | - Nobuo Cho
- Pharmaceutical Research Division, Takeda Pharmaceutical Co. Ltd., 2-26-1 Muraoka-Higashi, Fujisawa, Kanagawa, 251-8555, Japan.,Drug Discovery Chemistry Platform Unit (Wako branch), RIKEN Center for Life Science Technologies, 2-1 Hirosawa, Wako, Saitama, 351-0198, Japan
| | - Mikihiko Naito
- Divisions of Molecular Target and Gene Therapy Products, National Institute of Health Sciences, 3-25-26 Tonomachi, Kawasaki-ku, Kawasaki, Kanagawa, 210-9501, Japan.
| |
Collapse
|
160
|
Minzel W, Venkatachalam A, Fink A, Hung E, Brachya G, Burstain I, Shaham M, Rivlin A, Omer I, Zinger A, Elias S, Winter E, Erdman PE, Sullivan RW, Fung L, Mercurio F, Li D, Vacca J, Kaushansky N, Shlush L, Oren M, Levine R, Pikarsky E, Snir-Alkalay I, Ben-Neriah Y. Small Molecules Co-targeting CKIα and the Transcriptional Kinases CDK7/9 Control AML in Preclinical Models. Cell 2018; 175:171-185.e25. [PMID: 30146162 DOI: 10.1016/j.cell.2018.07.045] [Citation(s) in RCA: 99] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2017] [Revised: 07/06/2018] [Accepted: 07/27/2018] [Indexed: 12/22/2022]
Abstract
CKIα ablation induces p53 activation, and CKIα degradation underlies the therapeutic effect of lenalidomide in a pre-leukemia syndrome. Here we describe the development of CKIα inhibitors, which co-target the transcriptional kinases CDK7 and CDK9, thereby augmenting CKIα-induced p53 activation and its anti-leukemic activity. Oncogene-driving super-enhancers (SEs) are highly sensitive to CDK7/9 inhibition. We identified multiple newly gained SEs in primary mouse acute myeloid leukemia (AML) cells and demonstrate that the inhibitors abolish many SEs and preferentially suppress the transcription elongation of SE-driven oncogenes. We show that blocking CKIα together with CDK7 and/or CDK9 synergistically stabilize p53, deprive leukemia cells of survival and proliferation-maintaining SE-driven oncogenes, and induce apoptosis. Leukemia progenitors are selectively eliminated by the inhibitors, explaining their therapeutic efficacy with preserved hematopoiesis and leukemia cure potential; they eradicate leukemia in MLL-AF9 and Tet2-/-;Flt3ITD AML mouse models and in several patient-derived AML xenograft models, supporting their potential efficacy in curing human leukemia.
Collapse
Affiliation(s)
- Waleed Minzel
- The Lautenberg Center for Immunology and Cancer Research, Institute of Medical Research Israel-Canada, Hebrew University-Hadassah Medical School, Jerusalem, Israel
| | - Avanthika Venkatachalam
- The Lautenberg Center for Immunology and Cancer Research, Institute of Medical Research Israel-Canada, Hebrew University-Hadassah Medical School, Jerusalem, Israel
| | - Avner Fink
- The Lautenberg Center for Immunology and Cancer Research, Institute of Medical Research Israel-Canada, Hebrew University-Hadassah Medical School, Jerusalem, Israel
| | - Eric Hung
- The Lautenberg Center for Immunology and Cancer Research, Institute of Medical Research Israel-Canada, Hebrew University-Hadassah Medical School, Jerusalem, Israel
| | - Guy Brachya
- The Lautenberg Center for Immunology and Cancer Research, Institute of Medical Research Israel-Canada, Hebrew University-Hadassah Medical School, Jerusalem, Israel
| | - Ido Burstain
- The Lautenberg Center for Immunology and Cancer Research, Institute of Medical Research Israel-Canada, Hebrew University-Hadassah Medical School, Jerusalem, Israel
| | - Maya Shaham
- The Lautenberg Center for Immunology and Cancer Research, Institute of Medical Research Israel-Canada, Hebrew University-Hadassah Medical School, Jerusalem, Israel
| | - Amitai Rivlin
- The Lautenberg Center for Immunology and Cancer Research, Institute of Medical Research Israel-Canada, Hebrew University-Hadassah Medical School, Jerusalem, Israel
| | - Itay Omer
- The Lautenberg Center for Immunology and Cancer Research, Institute of Medical Research Israel-Canada, Hebrew University-Hadassah Medical School, Jerusalem, Israel
| | - Adar Zinger
- The Lautenberg Center for Immunology and Cancer Research, Institute of Medical Research Israel-Canada, Hebrew University-Hadassah Medical School, Jerusalem, Israel
| | - Shlomo Elias
- The Lautenberg Center for Immunology and Cancer Research, Institute of Medical Research Israel-Canada, Hebrew University-Hadassah Medical School, Jerusalem, Israel; Department of Hematology, Hadassah Medical Center, Hebrew University-Hadassah Medical School, Jerusalem, Israel
| | - Eitan Winter
- Bioinformatics Unit of the I-CORE Computation Center, Hebrew University-Hadassah Medical School, Jerusalem, Israel
| | | | | | | | | | | | | | - Nathali Kaushansky
- Department of Immunology, The Weizmann Institute of Science, Rehovot, Israel
| | - Liran Shlush
- Department of Immunology, The Weizmann Institute of Science, Rehovot, Israel
| | - Moshe Oren
- Department of Molecular Cell Biology, The Weizmann Institute of Science, Rehovot, Israel
| | - Ross Levine
- Center for Hematologic Malignancies, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Eli Pikarsky
- The Lautenberg Center for Immunology and Cancer Research, Institute of Medical Research Israel-Canada, Hebrew University-Hadassah Medical School, Jerusalem, Israel; Department of Pathology, Hadassah Medical Center, Hebrew University-Hadassah Medical School, Jerusalem, Israel
| | - Irit Snir-Alkalay
- The Lautenberg Center for Immunology and Cancer Research, Institute of Medical Research Israel-Canada, Hebrew University-Hadassah Medical School, Jerusalem, Israel
| | - Yinon Ben-Neriah
- The Lautenberg Center for Immunology and Cancer Research, Institute of Medical Research Israel-Canada, Hebrew University-Hadassah Medical School, Jerusalem, Israel.
| |
Collapse
|
161
|
Wang L, Guillen VS, Sharma N, Flessa K, Min J, Carlson KE, Toy W, Braqi S, Katzenellenbogen BS, Katzenellenbogen JA, Chandarlapaty S, Sharma A. New Class of Selective Estrogen Receptor Degraders (SERDs): Expanding the Toolbox of PROTAC Degrons. ACS Med Chem Lett 2018; 9:803-808. [PMID: 30128071 DOI: 10.1021/acsmedchemlett.8b00106] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2018] [Accepted: 07/05/2018] [Indexed: 12/14/2022] Open
Abstract
An effective endocrine therapy for breast cancer is to selectively and effectively degrade the estrogen receptor (ER). Up until now, there have been largely only two molecular scaffolds capable of doing this. In this study, we have developed new classes of scaffolds that possess selective estrogen receptor degrader (SERD) and ER antagonistic properties. These novel SERDs potently inhibit MCF-7 breast cancer cell proliferation and the expression of ER target genes, and their efficacy is comparable to Fulvestrant. Unlike Fulvestrant, the modular protein-targeted chimera (PROTAC)-type design of these novel SERDs should allow easy diversification into a library of analogs to further fine-tune their pharmacokinetic properties including oral availability. This work also expands the pool of currently available PROTAC-type scaffolds that could be beneficial for targeted degradation of various other therapeutically important proteins.
Collapse
Affiliation(s)
- Lucia Wang
- Department of Chemistry and Chemical Biology, Stevens Institute of Technology, Hoboken, New Jersey 07601 United States
| | - Valeria S. Guillen
- Department of Chemistry, Department of Molecular and Integrative Physiology, University of Illinois at Urbana−Champaign, Urbana, Illinois 61801 United States
| | - Naina Sharma
- Department of Chemistry, Department of Molecular and Integrative Physiology, University of Illinois at Urbana−Champaign, Urbana, Illinois 61801 United States
| | - Kevin Flessa
- Department of Chemistry and Chemical Biology, Stevens Institute of Technology, Hoboken, New Jersey 07601 United States
| | - Jian Min
- Department of Chemistry, Department of Molecular and Integrative Physiology, University of Illinois at Urbana−Champaign, Urbana, Illinois 61801 United States
| | - Kathryn E. Carlson
- Department of Chemistry, Department of Molecular and Integrative Physiology, University of Illinois at Urbana−Champaign, Urbana, Illinois 61801 United States
| | - Weiyi Toy
- Human Oncology and Pathogenesis Program, Memorial Sloan Kettering Cancer Center, New York, New York 10065, United States
| | - Sara Braqi
- Department of Chemistry and Chemical Biology, Stevens Institute of Technology, Hoboken, New Jersey 07601 United States
| | - Benita S. Katzenellenbogen
- Department of Chemistry, Department of Molecular and Integrative Physiology, University of Illinois at Urbana−Champaign, Urbana, Illinois 61801 United States
| | - John A. Katzenellenbogen
- Department of Chemistry, Department of Molecular and Integrative Physiology, University of Illinois at Urbana−Champaign, Urbana, Illinois 61801 United States
| | - Sarat Chandarlapaty
- Human Oncology and Pathogenesis Program, Memorial Sloan Kettering Cancer Center, New York, New York 10065, United States
| | - Abhishek Sharma
- Department of Chemistry and Chemical Biology, Stevens Institute of Technology, Hoboken, New Jersey 07601 United States
| |
Collapse
|
162
|
Qin C, Hu Y, Zhou B, Fernandez-Salas E, Yang CY, Liu L, McEachern D, Przybranowski S, Wang M, Stuckey J, Meagher J, Bai L, Chen Z, Lin M, Yang J, Xu F, Hu J, Xing W, Huang L, Li S, Wen B, Sun D, Wang S, Wang S. Discovery of QCA570 as an Exceptionally Potent and Efficacious Proteolysis Targeting Chimera (PROTAC) Degrader of the Bromodomain and Extra-Terminal (BET) Proteins Capable of Inducing Complete and Durable Tumor Regression. J Med Chem 2018; 61:6685-6704. [PMID: 30019901 PMCID: PMC6545111 DOI: 10.1021/acs.jmedchem.8b00506] [Citation(s) in RCA: 191] [Impact Index Per Article: 31.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Proteins of the bromodomain and extra-terminal (BET) family are epigenetics "readers" and promising therapeutic targets for cancer and other human diseases. We describe herein a structure-guided design of [1,4]oxazepines as a new class of BET inhibitors and our subsequent design, synthesis, and evaluation of proteolysis-targeting chimeric (PROTAC) small-molecule BET degraders. Our efforts have led to the discovery of extremely potent BET degraders, exemplified by QCA570, which effectively induces degradation of BET proteins and inhibits cell growth in human acute leukemia cell lines even at low picomolar concentrations. QCA570 achieves complete and durable tumor regression in leukemia xenograft models in mice at well-tolerated dose-schedules. QCA570 is the most potent and efficacious BET degrader reported to date.
Collapse
Affiliation(s)
- Chong Qin
- The Rogel Cancer Center, University of Michigan Medical School, Ann Arbor, Michigan 48109, United States,Department of Internal Medicine, University of Michigan Medical School, Ann Arbor, Michigan 48109, United States
| | - Yang Hu
- The Rogel Cancer Center, University of Michigan Medical School, Ann Arbor, Michigan 48109, United States,Department of Internal Medicine, University of Michigan Medical School, Ann Arbor, Michigan 48109, United States
| | - Bing Zhou
- The Rogel Cancer Center, University of Michigan Medical School, Ann Arbor, Michigan 48109, United States,Department of Internal Medicine, University of Michigan Medical School, Ann Arbor, Michigan 48109, United States
| | - Ester Fernandez-Salas
- The Rogel Cancer Center, University of Michigan Medical School, Ann Arbor, Michigan 48109, United States,Department of Pathology, University of Michigan Medical School, Ann Arbor, Michigan 48109, United States
| | - Chao-Yie Yang
- The Rogel Cancer Center, University of Michigan Medical School, Ann Arbor, Michigan 48109, United States,Department of Internal Medicine, University of Michigan Medical School, Ann Arbor, Michigan 48109, United States
| | - Liu Liu
- The Rogel Cancer Center, University of Michigan Medical School, Ann Arbor, Michigan 48109, United States,Department of Internal Medicine, University of Michigan Medical School, Ann Arbor, Michigan 48109, United States
| | - Donna McEachern
- The Rogel Cancer Center, University of Michigan Medical School, Ann Arbor, Michigan 48109, United States,Department of Internal Medicine, University of Michigan Medical School, Ann Arbor, Michigan 48109, United States
| | - Sally Przybranowski
- The Rogel Cancer Center, University of Michigan Medical School, Ann Arbor, Michigan 48109, United States,Department of Internal Medicine, University of Michigan Medical School, Ann Arbor, Michigan 48109, United States
| | - Mi Wang
- The Rogel Cancer Center, University of Michigan Medical School, Ann Arbor, Michigan 48109, United States,Department of Internal Medicine, University of Michigan Medical School, Ann Arbor, Michigan 48109, United States
| | - Jeanne Stuckey
- Life Sciences Institute, University of Michigan, University of Michigan, Ann Arbor, Michigan 48109, United States
| | - Jennifer Meagher
- Life Sciences Institute, University of Michigan, University of Michigan, Ann Arbor, Michigan 48109, United States
| | - Longchuan Bai
- The Rogel Cancer Center, University of Michigan Medical School, Ann Arbor, Michigan 48109, United States,Department of Internal Medicine, University of Michigan Medical School, Ann Arbor, Michigan 48109, United States
| | - Zhuo Chen
- The Rogel Cancer Center, University of Michigan Medical School, Ann Arbor, Michigan 48109, United States,Department of Internal Medicine, University of Michigan Medical School, Ann Arbor, Michigan 48109, United States
| | - Mei Lin
- The Rogel Cancer Center, University of Michigan Medical School, Ann Arbor, Michigan 48109, United States,Department of Internal Medicine, University of Michigan Medical School, Ann Arbor, Michigan 48109, United States
| | - Jiuling Yang
- The Rogel Cancer Center, University of Michigan Medical School, Ann Arbor, Michigan 48109, United States,Department of Internal Medicine, University of Michigan Medical School, Ann Arbor, Michigan 48109, United States,Department of Pharmacology, University of Michigan Medical School, Ann Arbor, Michigan 48109, United States
| | - Fuming Xu
- The Rogel Cancer Center, University of Michigan Medical School, Ann Arbor, Michigan 48109, United States,Department of Internal Medicine, University of Michigan Medical School, Ann Arbor, Michigan 48109, United States
| | - Jiantao Hu
- The Rogel Cancer Center, University of Michigan Medical School, Ann Arbor, Michigan 48109, United States,Department of Internal Medicine, University of Michigan Medical School, Ann Arbor, Michigan 48109, United States
| | - Weiguo Xing
- The Rogel Cancer Center, University of Michigan Medical School, Ann Arbor, Michigan 48109, United States,Department of Internal Medicine, University of Michigan Medical School, Ann Arbor, Michigan 48109, United States
| | - Liyue Huang
- The Rogel Cancer Center, University of Michigan Medical School, Ann Arbor, Michigan 48109, United States,Department of Internal Medicine, University of Michigan Medical School, Ann Arbor, Michigan 48109, United States
| | - Siwei Li
- Pharmacokinetics Core, College of Pharmacy, University of Michigan, University of Michigan, Ann Arbor, Michigan 48109, United States
| | - Bo Wen
- Pharmacokinetics Core, College of Pharmacy, University of Michigan, University of Michigan, Ann Arbor, Michigan 48109, United States
| | - Duxin Sun
- Pharmacokinetics Core, College of Pharmacy, University of Michigan, University of Michigan, Ann Arbor, Michigan 48109, United States
| | - Shaomeng Wang
- The Rogel Cancer Center, University of Michigan Medical School, Ann Arbor, Michigan 48109, United States,Department of Internal Medicine, University of Michigan Medical School, Ann Arbor, Michigan 48109, United States,Department of Pharmacology, University of Michigan Medical School, Ann Arbor, Michigan 48109, United States,Department of Medicinal Chemistry, University of Michigan Medical School, Ann Arbor, Michigan 48109, United States,Corresponding Author: Professor Shaomeng Wang at
| | | |
Collapse
|
163
|
Androgen receptor degradation by the proteolysis-targeting chimera ARCC-4 outperforms enzalutamide in cellular models of prostate cancer drug resistance. Commun Biol 2018; 1:100. [PMID: 30271980 PMCID: PMC6123676 DOI: 10.1038/s42003-018-0105-8] [Citation(s) in RCA: 232] [Impact Index Per Article: 38.7] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2018] [Accepted: 06/28/2018] [Indexed: 12/18/2022] Open
Abstract
The androgen receptor is a major driver of prostate cancer and inhibition of its transcriptional activity using competitive antagonists, such as enzalutamide remains a frontline therapy for prostate cancer management. However, the majority of patients eventually develop drug resistance. We propose that targeting the androgen receptor for degradation via Proteolysis Targeting Chimeras (PROTACs) will be a better therapeutic strategy for targeting androgen receptor signaling in prostate cancer cells. Here we perform a head-to-head comparison between a currently approved androgen receptor antagonist enzalutamide, and its PROTAC derivative, ARCC-4, across different cellular models of prostate cancer drug resistance. ARCC-4 is a low-nanomolar androgen receptor degrader able to degrade about 95% of cellular androgen receptors. ARCC-4 inhibits prostate tumor cell proliferation, degrades clinically relevant androgen receptor point mutants and unlike enzalutamide, retains antiproliferative effect in a high androgen environment. Thus, ARCC-4 exemplifies how protein degradation can address the drug resistance hurdles of enzalutamide. Jemilat Salami et al. develop a proteolysis targeting chimera ARCC-4, which inhibits prostate tumor cell proliferation via degradation of the androgen receptor. They show in cells that ARCC-4 is more effective than the prostate cancer drug enzalutamide and can degrade androgen receptor variants resistant to enzalutamide.
Collapse
|
164
|
Cui C, Zhou X, Zhang W, Qu Y, Ke X. Is β-Catenin a Druggable Target for Cancer Therapy? Trends Biochem Sci 2018; 43:623-634. [DOI: 10.1016/j.tibs.2018.06.003] [Citation(s) in RCA: 59] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2018] [Revised: 06/02/2018] [Accepted: 06/03/2018] [Indexed: 01/09/2023]
|
165
|
Lu G, Tandang-Silvas MR, Dawson AC, Dawson TJ, Groppe JC. Hypoxia-selective allosteric destabilization of activin receptor-like kinases: A potential therapeutic avenue for prophylaxis of heterotopic ossification. Bone 2018; 112:71-89. [PMID: 29626545 PMCID: PMC9851731 DOI: 10.1016/j.bone.2018.03.027] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/22/2018] [Revised: 03/29/2018] [Accepted: 03/30/2018] [Indexed: 01/21/2023]
Abstract
Heterotopic ossification (HO), the pathological extraskeletal formation of bone, can arise from blast injuries, severe burns, orthopedic procedures and gain-of-function mutations in a component of the bone morphogenetic protein (BMP) signaling pathway, the ACVR1/ALK2 receptor serine-threonine (protein) kinase, causative of Fibrodysplasia Ossificans Progressiva (FOP). All three ALKs (-2, -3, -6) that play roles in bone morphogenesis contribute to trauma-induced HO, hence are well-validated pharmacological targets. That said, development of inhibitors, typically competitors of ATP binding, is inherently difficult due to the conserved nature of the active site of the 500+ human protein kinases. Since these enzymes are regulated via inherent plasticity, pharmacological chaperone-like drugs binding to another (allosteric) site could hypothetically modulate kinase conformation and activity. To test for such a mechanism, a surface pocket of ALK2 kinase formed largely by a key allosteric substructure was targeted by supercomputer docking of drug-like compounds from a virtual library. Subsequently, the effects of docked hits were further screened in vitro with purified recombinant kinase protein. A family of compounds with terminal hydrogen-bonding acceptor groups was identified that significantly destabilized the protein, inhibiting activity. Destabilization was pH-dependent, putatively mediated by ionization of a histidine within the allosteric substructure with decreasing pH. In vivo, nonnative proteins are degraded by proteolysis in the proteasome complex, or cellular trashcan, allowing for the emergence of therapeutics that inhibit through degradation of over-active proteins implicated in the pathology of diseases and disorders. Because HO is triggered by soft-tissue trauma and ensuing hypoxia, dependency of ALK destabilization on hypoxic pH imparts selective efficacy on the allosteric inhibitors, providing potential for safe prophylactic use.
Collapse
Affiliation(s)
- Guorong Lu
- Department of Biomedical Sciences, Texas A&M University College of Dentistry, Dallas, TX 75246, United States
| | - Mary R Tandang-Silvas
- Department of Biomedical Sciences, Texas A&M University College of Dentistry, Dallas, TX 75246, United States
| | - Alyssa C Dawson
- Department of Biomedical Sciences, Texas A&M University College of Dentistry, Dallas, TX 75246, United States
| | - Trenton J Dawson
- Department of Biomedical Sciences, Texas A&M University College of Dentistry, Dallas, TX 75246, United States
| | - Jay C Groppe
- Department of Biomedical Sciences, Texas A&M University College of Dentistry, Dallas, TX 75246, United States.
| |
Collapse
|
166
|
Itoh Y. Chemical Protein Degradation Approach and its Application to Epigenetic Targets. CHEM REC 2018; 18:1681-1700. [PMID: 29893461 DOI: 10.1002/tcr.201800032] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2018] [Accepted: 05/24/2018] [Indexed: 12/17/2022]
Abstract
In addition to traditional drugs, such as enzyme inhibitors, receptor agonists/antagonists, and protein-protein interaction inhibitors as well as genetic technology, such as RNA interference and the CRISPR/Cas9 system, protein knockdown approaches using proteolysis-targeting chimeras (PROTACs) have attracted much attention. PROTACs, which induce selective degradation of their target protein via the ubiquitin-proteasome system, are useful for the down-regulation of various proteins, including disease-related proteins and epigenetic proteins. Recent reports have shown that chemical protein knockdown is possible not only in cells, but also in vivo and this approach is expected to be used as the therapeutic strategy for several diseases. Thus, this approach may be a significant technique to complement traditional drugs and genetic ablation and will be more widely used for drug discovery and chemical biology studies in the future. In this personal account, a history of chemical protein knockdown is introduced, and its features, recent progress in the epigenetics field, and future outlooks are discussed.
Collapse
Affiliation(s)
- Yukihiro Itoh
- Department of Chemistry, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, 1-5 Shimogamohangi-cho, Sakyo-ku, Kyoto, 606-0823, Japan
| |
Collapse
|
167
|
Buhimschi AD, Armstrong HA, Toure M, Jaime-Figueroa S, Chen TL, Lehman AM, Woyach JA, Johnson AJ, Byrd JC, Crews CM. Targeting the C481S Ibrutinib-Resistance Mutation in Bruton’s Tyrosine Kinase Using PROTAC-Mediated Degradation. Biochemistry 2018; 57:3564-3575. [DOI: 10.1021/acs.biochem.8b00391] [Citation(s) in RCA: 189] [Impact Index Per Article: 31.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Affiliation(s)
- Alexandru D. Buhimschi
- Department of Molecular, Cellular, and Developmental Biology, Yale University, New Haven, Connecticut 06511, United States
| | - Haley A. Armstrong
- Division of Pharmaceutics & Pharmaceutical Chemistry, College of Pharmacy, The Ohio State University, Columbus, Ohio 43210, United States
| | - Momar Toure
- Department of Molecular, Cellular, and Developmental Biology, Yale University, New Haven, Connecticut 06511, United States
| | - Saul Jaime-Figueroa
- Department of Molecular, Cellular, and Developmental Biology, Yale University, New Haven, Connecticut 06511, United States
| | - Timothy L. Chen
- Department of Internal Medicine, Division of Hematology, The Ohio State University, Columbus, Ohio 43210, United States
| | - Amy M. Lehman
- Center for Biostatistics, The Ohio State University, Columbus, Ohio 43210, United States
| | - Jennifer A. Woyach
- Division of Pharmaceutics & Pharmaceutical Chemistry, College of Pharmacy, The Ohio State University, Columbus, Ohio 43210, United States
- Department of Internal Medicine, Division of Hematology, The Ohio State University, Columbus, Ohio 43210, United States
| | - Amy J. Johnson
- Department of Internal Medicine, Division of Hematology, The Ohio State University, Columbus, Ohio 43210, United States
| | - John C. Byrd
- Division of Pharmaceutics & Pharmaceutical Chemistry, College of Pharmacy, The Ohio State University, Columbus, Ohio 43210, United States
- Department of Internal Medicine, Division of Hematology, The Ohio State University, Columbus, Ohio 43210, United States
| | - Craig M. Crews
- Department of Molecular, Cellular, and Developmental Biology, Yale University, New Haven, Connecticut 06511, United States
- Department of Chemistry, Yale University, New Haven, Connecticut 06520-8107, United States
- Department of Pharmacology, Yale University, New Haven, Connecticut 06520-8066, United States
| |
Collapse
|
168
|
Abstract
Maintenance of protein homeostasis is a crucial process for the normal functioning of the cell. The regulated degradation of proteins is primarily facilitated by the ubiquitin proteasome system (UPS), a system of selective tagging of proteins with ubiquitin followed by proteasome-mediated proteolysis. The UPS is highly dynamic consisting of both ubiquitination and deubiquitination steps that modulate protein stabilization and degradation. Deregulation of protein stability is a common feature in the development and progression of numerous cancer types. Simultaneously, the elevated protein synthesis rate of cancer cells and consequential accumulation of misfolded proteins drives UPS addiction, thus sensitizing them to UPS inhibitors. This sensitivity along with the potential of stabilizing pro-apoptotic signaling pathways makes the proteasome an attractive clinical target for the development of novel therapies. Targeting of the catalytic 20S subunit of the proteasome is already a clinically validated strategy in multiple myeloma and other cancers. Spurred on by this success, promising novel inhibitors of the UPS have entered development, targeting the 20S as well as regulatory 19S subunit and inhibitors of deubiquitinating and ubiquitin ligase enzymes. In this review, we outline the manner in which deregulation of the UPS can cause cancer to develop, current clinical application of proteasome inhibitors, and the (pre-)clinical development of novel inhibitors of the UPS.
Collapse
Affiliation(s)
- Arjan Mofers
- Department of Medical and Health Sciences, Linköping University, SE-581 83, Linköping, Sweden
| | - Paola Pellegrini
- Department of Medical and Health Sciences, Linköping University, SE-581 83, Linköping, Sweden
| | - Stig Linder
- Department of Medical and Health Sciences, Linköping University, SE-581 83, Linköping, Sweden. .,Cancer Center Karolinska, Department of Oncology and Pathology, Karolinska Institute, SE-171 76, Stockholm, Sweden.
| | - Pádraig D'Arcy
- Department of Medical and Health Sciences, Linköping University, SE-581 83, Linköping, Sweden.
| |
Collapse
|
169
|
Probing ubiquitin and SUMO conjugation and deconjugation. Biochem Soc Trans 2018; 46:423-436. [PMID: 29588386 DOI: 10.1042/bst20170086] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2018] [Revised: 02/25/2018] [Accepted: 02/28/2018] [Indexed: 12/24/2022]
Abstract
Ubiquitin (Ub) and ubiquitin-like (Ubl) proteins including small Ubl modifier (SUMO) are small proteins which are covalently linked to target proteins to regulate their functions. In this review, we discuss the current state of the art and point out what we feel this field urgently needs in order to delineate the wiring of the system. We discuss what is needed to unravel the connections between different components of the conjugation machineries for ubiquitylation and SUMOylation, and to unravel the connections between the conjugation machineries and their substrates. Chemical probes are key tools to probe signal transduction by these small proteins that may help understand their action. This rapidly moving field has resulted in various small molecules that will help us to further understand Ub and SUMO function and that may lead to the development of new drugs.
Collapse
|
170
|
Robb CM, Contreras JI, Kour S, Taylor MA, Abid M, Sonawane YA, Zahid M, Murry DJ, Natarajan A, Rana S. Chemically induced degradation of CDK9 by a proteolysis targeting chimera (PROTAC). Chem Commun (Camb) 2018. [PMID: 28636052 DOI: 10.1039/c7cc03879h] [Citation(s) in RCA: 162] [Impact Index Per Article: 27.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Cyclin-dependent kinase 9 (CDK9), a member of the cyclin-dependent protein kinase (CDK) family, is involved in transcriptional elongation of several target genes. CDK9 is ubiquitously expressed and has been shown to contribute to a variety of malignancies such as pancreatic, prostate and breast cancers. Here we report the development of a heterobifunctional small molecule proteolysis targeting chimera (PROTAC) capable of cereblon (CRBN) mediated proteasomal degradation of CDK9. In HCT116 cells, it selectively degrades CDK9 while sparing other CDK family members. This is the first example of a PROTAC that selectively degrades CDK9.
Collapse
Affiliation(s)
- Caroline M Robb
- Eppley Institute for Research in Cancer and Allied Diseases, Omaha, Nebraska 68022, USA.
| | | | | | | | | | | | | | | | | | | |
Collapse
|
171
|
Zhao Y, Long MJC, Wang Y, Zhang S, Aye Y. Ube2V2 Is a Rosetta Stone Bridging Redox and Ubiquitin Codes, Coordinating DNA Damage Responses. ACS CENTRAL SCIENCE 2018; 4. [PMID: 29532025 PMCID: PMC5833000 DOI: 10.1021/acscentsci.7b00556] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
Posttranslational modifications (PTMs) are the lingua franca of cellular communication. Most PTMs are enzyme-orchestrated. However, the reemergence of electrophilic drugs has ushered mining of unconventional/non-enzyme-catalyzed electrophile-signaling pathways. Despite the latest impetus toward harnessing kinetically and functionally privileged cysteines for electrophilic drug design, identifying these sensors remains challenging. Herein, we designed "G-REX"-a technique that allows controlled release of reactive electrophiles in vivo. Mitigating toxicity/off-target effects associated with uncontrolled bolus exposure, G-REX tagged first-responding innate cysteines that bind electrophiles under true kcat/Km conditions. G-REX identified two allosteric ubiquitin-conjugating proteins-Ube2V1/Ube2V2-sharing a novel privileged-sensor-cysteine. This non-enzyme-catalyzed-PTM triggered responses specific to each protein. Thus, G-REX is an unbiased method to identify novel functional cysteines. Contrasting conventional active-site/off-active-site cysteine-modifications that regulate target activity, modification of Ube2V2 allosterically hyperactivated its enzymatically active binding-partner Ube2N, promoting K63-linked client ubiquitination and stimulating H2AX-dependent DNA damage response. This work establishes Ube2V2 as a Rosetta-stone bridging redox and ubiquitin codes to guard genome integrity.
Collapse
Affiliation(s)
- Yi Zhao
- Department of Chemistry & Chemical Biology and Proteomics and Mass Spectrometry
Facility, Institute of Biotechnology, Cornell
University, Ithaca, New York 14850, United States
| | - Marcus J. C. Long
- Department of Chemistry & Chemical Biology and Proteomics and Mass Spectrometry
Facility, Institute of Biotechnology, Cornell
University, Ithaca, New York 14850, United States
| | - Yiran Wang
- Department of Chemistry & Chemical Biology and Proteomics and Mass Spectrometry
Facility, Institute of Biotechnology, Cornell
University, Ithaca, New York 14850, United States
| | - Sheng Zhang
- Department of Chemistry & Chemical Biology and Proteomics and Mass Spectrometry
Facility, Institute of Biotechnology, Cornell
University, Ithaca, New York 14850, United States
| | - Yimon Aye
- Department of Chemistry & Chemical Biology and Proteomics and Mass Spectrometry
Facility, Institute of Biotechnology, Cornell
University, Ithaca, New York 14850, United States
- Department
of Biochemistry, Weill Cornell Medicine, New York, New York 10065, United States
- E-mail:
| |
Collapse
|
172
|
Gu S, Cui D, Chen X, Xiong X, Zhao Y. PROTACs: An Emerging Targeting Technique for Protein Degradation in Drug Discovery. Bioessays 2018; 40:e1700247. [PMID: 29473971 DOI: 10.1002/bies.201700247] [Citation(s) in RCA: 131] [Impact Index Per Article: 21.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2017] [Revised: 01/20/2018] [Indexed: 12/20/2022]
Affiliation(s)
- Shanshan Gu
- Key Laboratory of Combined Multi-Organ Transplantation, Ministry of Public Health, First Affiliated Hospital, Zhejiang University School of Medicine; 310003 Hangzhou China
- Institute of Translational Medicine, Zhejiang University School of Medicine; Hangzhou China
| | - Danrui Cui
- Key Laboratory of Combined Multi-Organ Transplantation, Ministry of Public Health, First Affiliated Hospital, Zhejiang University School of Medicine; 310003 Hangzhou China
- Institute of Translational Medicine, Zhejiang University School of Medicine; Hangzhou China
| | - Xiaoyu Chen
- Key Laboratory of Combined Multi-Organ Transplantation, Ministry of Public Health, First Affiliated Hospital, Zhejiang University School of Medicine; 310003 Hangzhou China
- Institute of Translational Medicine, Zhejiang University School of Medicine; Hangzhou China
| | - Xiufang Xiong
- Key Laboratory of Combined Multi-Organ Transplantation, Ministry of Public Health, First Affiliated Hospital, Zhejiang University School of Medicine; 310003 Hangzhou China
- Institute of Translational Medicine, Zhejiang University School of Medicine; Hangzhou China
| | - Yongchao Zhao
- Key Laboratory of Combined Multi-Organ Transplantation, Ministry of Public Health, First Affiliated Hospital, Zhejiang University School of Medicine; 310003 Hangzhou China
- Institute of Translational Medicine, Zhejiang University School of Medicine; Hangzhou China
| |
Collapse
|
173
|
Lu M, Liu T, Jiao Q, Ji J, Tao M, Liu Y, You Q, Jiang Z. Discovery of a Keap1-dependent peptide PROTAC to knockdown Tau by ubiquitination-proteasome degradation pathway. Eur J Med Chem 2018; 146:251-259. [DOI: 10.1016/j.ejmech.2018.01.063] [Citation(s) in RCA: 101] [Impact Index Per Article: 16.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2017] [Revised: 01/17/2018] [Accepted: 01/18/2018] [Indexed: 12/13/2022]
|
174
|
Busonero C, Leone S, Klemm C, Acconcia F. A functional drug re-purposing screening identifies carfilzomib as a drug preventing 17β-estradiol: ERα signaling and cell proliferation in breast cancer cells. Mol Cell Endocrinol 2018; 460:229-237. [PMID: 28760601 DOI: 10.1016/j.mce.2017.07.027] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/17/2017] [Revised: 07/27/2017] [Accepted: 07/27/2017] [Indexed: 12/13/2022]
Abstract
Most cases of breast cancer (BC) are estrogen receptor α-positive (ERα+) at diagnosis. The presence of ERα drives the therapeutic approach for this disease, which often consists of endocrine therapy (ET). 4OH-Tamoxifen and faslodex (i.e., fulvestrant - ICI182,780) are two ETs that render tumor cells insensitive to 17β-estradiol (E2)-dependent proliferative stimuli and prevent BC progression. However, ET has limitations and serious failures in different tissues and organs. Thus, there is an urgent need to identify novel drugs to fight BC in the clinic. Re-positioning of old drugs for new clinical purposes is an attractive alternative for drug discovery. For this analysis, we focused on the modulation of intracellular ERα levels in BC cells as target for the screening of about 900 Food and Drug Administration (FDA) approved compounds that would hinder E2:ERα signaling and inhibit BC cell proliferation. We found that carfilzomib induces ERα degradation and prevents E2 signaling and cell proliferation in two ERα+ BC cell lines. Remarkably, the analysis of carfilzomib effects on a cell model system with an acquired resistance to 4OH-tamoxifen revealed that this drug has an antiproliferative effect superior to faslodex in BC cells. Therefore, our results identify carfilzomib as a drug preventing E2:ERα signaling and cell proliferation in BC cells and suggest its possible re-position for the treatment of ERα+ BC as well as for those diseases that have acquired resistance to 4OH-tamoxifen.
Collapse
Affiliation(s)
- Claudia Busonero
- Department of Sciences, Section Biomedical Sciences and Technology, University Roma Tre, Viale Guglielmo Marconi, 446, I-00146, Rome, Italy
| | - Stefano Leone
- Department of Sciences, Section Biomedical Sciences and Technology, University Roma Tre, Viale Guglielmo Marconi, 446, I-00146, Rome, Italy
| | - Cinzia Klemm
- Department of Biochemistry and Functional Proteomics, University of Freiburg, Schänzlestr. 1, 79104, Freiburg, Germany
| | - Filippo Acconcia
- Department of Sciences, Section Biomedical Sciences and Technology, University Roma Tre, Viale Guglielmo Marconi, 446, I-00146, Rome, Italy.
| |
Collapse
|
175
|
Bell CC, Dawson MA. TFIID and MYB Share a Therapeutic Handshake in AML. Cancer Cell 2018; 33:1-3. [PMID: 29316424 DOI: 10.1016/j.ccell.2017.12.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
Selectively disrupting oncogenic transcription factors in cancer remains an elusive ambition of targeted therapeutics. In this issue of Cancer Cell, Xu et al. provide an elegant proof-of-concept study demonstrating that interaction between MYB and the general transcriptional coactivator TFIID can be specifically disrupted to mediate a therapeutic effect in AML.
Collapse
Affiliation(s)
- Charles C Bell
- Cancer Research Division, Peter MacCallum Cancer Centre, Melbourne, VIC 3000, Australia; Sir Peter MacCallum Department of Oncology, University of Melbourne, VIC 3052, Australia
| | - Mark A Dawson
- Cancer Research Division, Peter MacCallum Cancer Centre, Melbourne, VIC 3000, Australia; Sir Peter MacCallum Department of Oncology, University of Melbourne, VIC 3052, Australia; Centre for Cancer Research, University of Melbourne, Melbourne, VIC, Australia; Department of Haematology, Peter MacCallum Cancer Centre, Melbourne, VIC 3000, Australia.
| |
Collapse
|
176
|
Abstract
The efficient production, folding, and secretion of proteins is critical for cancer cell survival. However, cancer cells thrive under stress conditions that damage proteins, so many cancer cells overexpress molecular chaperones that facilitate protein folding and target misfolded proteins for degradation via the ubiquitin-proteasome or autophagy pathway. Stress response pathway induction is also important for cancer cell survival. Indeed, validated targets for anti-cancer treatments include molecular chaperones, components of the unfolded protein response, the ubiquitin-proteasome system, and autophagy. We will focus on links between breast cancer and these processes, as well as the development of drug resistance, relapse, and treatment.
Collapse
Affiliation(s)
| | - Jeffrey L Brodsky
- Department of Biological Sciences, University of Pittsburgh, A320 Langley Hall, 4249 Fifth Ave, Pittsburgh, PA, 15260, USA.
| |
Collapse
|
177
|
Lei H, Jin J, Liu M, Li X, Luo H, Yang L, Xu H, Wu Y. Chk1 inhibitors overcome imatinib resistance in chronic myeloid leukemia cells. Leuk Res 2017; 64:17-23. [PMID: 29149649 DOI: 10.1016/j.leukres.2017.11.007] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2017] [Revised: 10/16/2017] [Accepted: 11/09/2017] [Indexed: 12/11/2022]
Abstract
Drug resistance to tyrosine kinase inhibitors (TKIs) is currently a clinical problem of chronic myelogenous leukemia (CML). Bcr-Abl protein depletion is considered as a way to overcome drug resistance to TKIs. In our study, Chk1 inhibitors, AZD7762 and MK-8776, had strong antitumor effects on CML cell line KBM5 and imatinib-resistant form KBM5T315I. Moreover, Chk1 inhibitors showed a strong cytotoxic effect on leukemia cells from primary CML and imatinib-resistance CML patients, but low cytotoxic effect on normal human mononuclear cells. Then, we found that Chk1 inhibitors induced apoptosis and increased DNA damage in CML cell lines with the degradation of the Bcr-Abl protein. Using the proteasome inhibitor and an immunoprecipitation assay, we found that Chk1 inhibitors triggered the degradation of Bcr-Abl through ubiquitination, which is depending on E3 ubiquitin ligase CHIP. At last, MK-8776 showed a significant tumor-suppressive effect of KBM5T315I cell in xenograft tumor models. Taking together, these findings suggest that targeting Chk1 may overcome TKIs resistance for the treatment of CML.
Collapse
Affiliation(s)
- Hu Lei
- Hongqiao International Institute of Medicine, Shanghai Tongren Hospital/Faculty of Basic Medicine, Chemical Biology Division of Shanghai Universities E-Institutes, Key Laboratory of Cell Differentiation and Apoptosis of the Chinese Ministry of Education, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China.
| | - Jin Jin
- Hongqiao International Institute of Medicine, Shanghai Tongren Hospital/Faculty of Basic Medicine, Chemical Biology Division of Shanghai Universities E-Institutes, Key Laboratory of Cell Differentiation and Apoptosis of the Chinese Ministry of Education, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China
| | - Meng Liu
- Hongqiao International Institute of Medicine, Shanghai Tongren Hospital/Faculty of Basic Medicine, Chemical Biology Division of Shanghai Universities E-Institutes, Key Laboratory of Cell Differentiation and Apoptosis of the Chinese Ministry of Education, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China
| | - Xiangyun Li
- Hongqiao International Institute of Medicine, Shanghai Tongren Hospital/Faculty of Basic Medicine, Chemical Biology Division of Shanghai Universities E-Institutes, Key Laboratory of Cell Differentiation and Apoptosis of the Chinese Ministry of Education, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China
| | - Hao Luo
- Hongqiao International Institute of Medicine, Shanghai Tongren Hospital/Faculty of Basic Medicine, Chemical Biology Division of Shanghai Universities E-Institutes, Key Laboratory of Cell Differentiation and Apoptosis of the Chinese Ministry of Education, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China
| | - Li Yang
- Hongqiao International Institute of Medicine, Shanghai Tongren Hospital/Faculty of Basic Medicine, Chemical Biology Division of Shanghai Universities E-Institutes, Key Laboratory of Cell Differentiation and Apoptosis of the Chinese Ministry of Education, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China
| | - Hanzhang Xu
- Hongqiao International Institute of Medicine, Shanghai Tongren Hospital/Faculty of Basic Medicine, Chemical Biology Division of Shanghai Universities E-Institutes, Key Laboratory of Cell Differentiation and Apoptosis of the Chinese Ministry of Education, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China
| | - Yingli Wu
- Hongqiao International Institute of Medicine, Shanghai Tongren Hospital/Faculty of Basic Medicine, Chemical Biology Division of Shanghai Universities E-Institutes, Key Laboratory of Cell Differentiation and Apoptosis of the Chinese Ministry of Education, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China.
| |
Collapse
|
178
|
Klee NS, McCarthy CG, Martinez-Quinones P, Webb RC. Out of the frying pan and into the fire: damage-associated molecular patterns and cardiovascular toxicity following cancer therapy. Ther Adv Cardiovasc Dis 2017; 11:297-317. [PMID: 28911261 PMCID: PMC5933669 DOI: 10.1177/1753944717729141] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/01/2017] [Accepted: 08/09/2017] [Indexed: 12/18/2022] Open
Abstract
Cardio-oncology is a new and rapidly expanding field that merges cancer and cardiovascular disease. Cardiovascular disease is an omnipresent side effect of cancer therapy; in fact, it is the second leading cause of death in cancer survivors after recurrent cancer. It has been well documented that many cancer chemotherapeutic agents cause cardiovascular toxicity. Nonetheless, the underlying cause of cancer therapy-induced cardiovascular toxicity is largely unknown. In this review, we discuss the potential role of damage-associated molecular patterns (DAMPs) as an underlying contributor to cancer therapy-induced cardiovascular toxicity. With an increasing number of cancer patients, as well as extended life expectancy, understanding the mechanisms underlying cancer therapy-induced cardiovascular disease is of the utmost importance to ensure that cancer is the only disease burden that cancer survivors have to endure.
Collapse
Affiliation(s)
- Nicole S. Klee
- Department of Physiology, Medical College of Georgia at Augusta University, 1120 15 Street, Augusta, GA 30912, USA
| | - Cameron G. McCarthy
- Department of Physiology, Medical College of Georgia at Augusta University, Augusta, GA, USA
| | - Patricia Martinez-Quinones
- Departments of Physiology and Surgery, Medical College of Georgia at Augusta University, Augusta, GA, USA
| | - R. Clinton Webb
- Department of Physiology, Medical College of Georgia at Augusta University, Augusta, GA, USA
| |
Collapse
|
179
|
Turnbull AP, Ioannidis S, Krajewski WW, Pinto-Fernandez A, Heride C, Martin ACL, Tonkin LM, Townsend EC, Buker SM, Lancia DR, Caravella JA, Toms AV, Charlton TM, Lahdenranta J, Wilker E, Follows BC, Evans NJ, Stead L, Alli C, Zarayskiy VV, Talbot AC, Buckmelter AJ, Wang M, McKinnon CL, Saab F, McGouran JF, Century H, Gersch M, Pittman MS, Marshall CG, Raynham TM, Simcox M, Stewart LMD, McLoughlin SB, Escobedo JA, Bair KW, Dinsmore CJ, Hammonds TR, Kim S, Urbé S, Clague MJ, Kessler BM, Komander D. Molecular basis of USP7 inhibition by selective small-molecule inhibitors. Nature 2017; 550:481-486. [PMID: 29045389 DOI: 10.1038/nature24451] [Citation(s) in RCA: 298] [Impact Index Per Article: 42.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2017] [Accepted: 09/25/2017] [Indexed: 12/16/2022]
Abstract
Ubiquitination controls the stability of most cellular proteins, and its deregulation contributes to human diseases including cancer. Deubiquitinases remove ubiquitin from proteins, and their inhibition can induce the degradation of selected proteins, potentially including otherwise 'undruggable' targets. For example, the inhibition of ubiquitin-specific protease 7 (USP7) results in the degradation of the oncogenic E3 ligase MDM2, and leads to re-activation of the tumour suppressor p53 in various cancers. Here we report that two compounds, FT671 and FT827, inhibit USP7 with high affinity and specificity in vitro and within human cells. Co-crystal structures reveal that both compounds target a dynamic pocket near the catalytic centre of the auto-inhibited apo form of USP7, which differs from other USP deubiquitinases. Consistent with USP7 target engagement in cells, FT671 destabilizes USP7 substrates including MDM2, increases levels of p53, and results in the transcription of p53 target genes, induction of the tumour suppressor p21, and inhibition of tumour growth in mice.
Collapse
Affiliation(s)
- Andrew P Turnbull
- CRUK Therapeutic Discovery Laboratories, London Bioscience Innovation Centre, London NW1 0NH, UK
| | | | - Wojciech W Krajewski
- CRUK Therapeutic Discovery Laboratories, London Bioscience Innovation Centre, London NW1 0NH, UK
| | - Adan Pinto-Fernandez
- Target Discovery Institute, Nuffield Department of Medicine, University of Oxford, Roosevelt Drive, Oxford OX3 7FZ, UK
| | - Claire Heride
- Cellular and Molecular Physiology, Institute of Translational Medicine, University of Liverpool, Crown Street, Liverpool L69 3BX, UK
| | - Agnes C L Martin
- CRUK Therapeutic Discovery Laboratories, Jonas Webb Building, Babraham Research Campus, Cambridge CB22 3AT, UK
| | - Louise M Tonkin
- CRUK Therapeutic Discovery Laboratories, Jonas Webb Building, Babraham Research Campus, Cambridge CB22 3AT, UK
| | | | - Shane M Buker
- FORMA Therapeutics, Arsenal Street, Watertown, Massachusetts 02472, USA
| | - David R Lancia
- FORMA Therapeutics, Arsenal Street, Watertown, Massachusetts 02472, USA
| | | | - Angela V Toms
- FORMA Therapeutics, Arsenal Street, Watertown, Massachusetts 02472, USA
| | - Thomas M Charlton
- Target Discovery Institute, Nuffield Department of Medicine, University of Oxford, Roosevelt Drive, Oxford OX3 7FZ, UK
| | | | - Erik Wilker
- FORMA Therapeutics, Arsenal Street, Watertown, Massachusetts 02472, USA
| | - Bruce C Follows
- FORMA Therapeutics, Arsenal Street, Watertown, Massachusetts 02472, USA
| | - Nicola J Evans
- CRUK Therapeutic Discovery Laboratories, London Bioscience Innovation Centre, London NW1 0NH, UK
| | - Lucy Stead
- Cellular and Molecular Physiology, Institute of Translational Medicine, University of Liverpool, Crown Street, Liverpool L69 3BX, UK
| | - Cristina Alli
- CRUK Therapeutic Discovery Laboratories, Jonas Webb Building, Babraham Research Campus, Cambridge CB22 3AT, UK
| | | | - Adam C Talbot
- FORMA Therapeutics, Arsenal Street, Watertown, Massachusetts 02472, USA
| | | | - Minghua Wang
- FORMA Therapeutics, Arsenal Street, Watertown, Massachusetts 02472, USA
| | | | - Fabienne Saab
- CRUK Therapeutic Discovery Laboratories, London Bioscience Innovation Centre, London NW1 0NH, UK
| | - Joanna F McGouran
- Target Discovery Institute, Nuffield Department of Medicine, University of Oxford, Roosevelt Drive, Oxford OX3 7FZ, UK
| | - Hannah Century
- Target Discovery Institute, Nuffield Department of Medicine, University of Oxford, Roosevelt Drive, Oxford OX3 7FZ, UK
| | - Malte Gersch
- Medical Research Council Laboratory of Molecular Biology, Francis Crick Avenue, Cambridge CB2 0QH, UK
| | - Marc S Pittman
- CRUK Therapeutic Discovery Laboratories, London Bioscience Innovation Centre, London NW1 0NH, UK
| | - C Gary Marshall
- FORMA Therapeutics, Arsenal Street, Watertown, Massachusetts 02472, USA
| | - Tony M Raynham
- CRUK Therapeutic Discovery Laboratories, London Bioscience Innovation Centre, London NW1 0NH, UK
| | - Mary Simcox
- FORMA Therapeutics, Arsenal Street, Watertown, Massachusetts 02472, USA
| | - Lorna M D Stewart
- CRUK Therapeutic Discovery Laboratories, London Bioscience Innovation Centre, London NW1 0NH, UK
| | - Sheila B McLoughlin
- CRUK Therapeutic Discovery Laboratories, Jonas Webb Building, Babraham Research Campus, Cambridge CB22 3AT, UK
| | - Jaime A Escobedo
- FORMA Therapeutics, Arsenal Street, Watertown, Massachusetts 02472, USA
| | - Kenneth W Bair
- FORMA Therapeutics, Arsenal Street, Watertown, Massachusetts 02472, USA
| | | | - Tim R Hammonds
- CRUK Therapeutic Discovery Laboratories, London Bioscience Innovation Centre, London NW1 0NH, UK
| | - Sunkyu Kim
- FORMA Therapeutics, Arsenal Street, Watertown, Massachusetts 02472, USA
| | - Sylvie Urbé
- Cellular and Molecular Physiology, Institute of Translational Medicine, University of Liverpool, Crown Street, Liverpool L69 3BX, UK
| | - Michael J Clague
- Cellular and Molecular Physiology, Institute of Translational Medicine, University of Liverpool, Crown Street, Liverpool L69 3BX, UK
| | - Benedikt M Kessler
- Target Discovery Institute, Nuffield Department of Medicine, University of Oxford, Roosevelt Drive, Oxford OX3 7FZ, UK
| | - David Komander
- Medical Research Council Laboratory of Molecular Biology, Francis Crick Avenue, Cambridge CB2 0QH, UK
| |
Collapse
|
180
|
Cromm PM, Crews CM. The Proteasome in Modern Drug Discovery: Second Life of a Highly Valuable Drug Target. ACS CENTRAL SCIENCE 2017; 3:830-838. [PMID: 28852696 PMCID: PMC5571462 DOI: 10.1021/acscentsci.7b00252] [Citation(s) in RCA: 101] [Impact Index Per Article: 14.4] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/14/2017] [Indexed: 06/07/2023]
Abstract
As the central figure of the cellular protein degradation machinery, the proteasome is critical for cell survival. Having been extensively targeted for inhibition, the constitutive proteasome has proven its role as a highly valuable drug target. However, recent advances in the protein homeostasis field suggest that additional chapters can be added to this successful story. For example, selective immunoproteasome inhibition promises high clinical efficacy for autoimmune disorders and inflammation, and proteasome inhibitors might serve as novel therapeutics for malaria or other microorganisms. Furthermore, utilizing the destructive force of the proteasome for selective degradation of essential drivers of human disorders has opened up a new and exciting area of drug discovery. Thus, the field of proteasome drug discovery still holds exciting questions to be answered and does not simply end with inhibiting the constitutive proteasome.
Collapse
Affiliation(s)
- Philipp M. Cromm
- Department
of Molecular, Cellular & Developmental Biology, Yale University, New Haven, Connecticut 06511, United States
| | - Craig M. Crews
- Department
of Molecular, Cellular & Developmental Biology, Yale University, New Haven, Connecticut 06511, United States
- Department
of Chemistry, Yale University, New Haven, Connecticut 06511, United States
- Department
of Pharmacology, Yale University, New Haven, Connecticut 06511, United States
| |
Collapse
|
181
|
Crew AP, Raina K, Dong H, Qian Y, Wang J, Vigil D, Serebrenik YV, Hamman BD, Morgan A, Ferraro C, Siu K, Neklesa TK, Winkler JD, Coleman KG, Crews CM. Identification and Characterization of Von Hippel-Lindau-Recruiting Proteolysis Targeting Chimeras (PROTACs) of TANK-Binding Kinase 1. J Med Chem 2017; 61:583-598. [PMID: 28692295 DOI: 10.1021/acs.jmedchem.7b00635] [Citation(s) in RCA: 169] [Impact Index Per Article: 24.1] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Proteolysis targeting chimeras (PROTACs) are bifunctional molecules that recruit an E3 ligase to a target protein to facilitate ubiquitination and subsequent degradation of that protein. While the field of targeted degraders is still relatively young, the potential for this modality to become a differentiated and therapeutic reality is strong, such that both academic and pharmaceutical institutions are now entering this interesting area of research. In this article, we describe a broadly applicable process for identifying degrader hits based on the serine/threonine kinase TANK-binding kinase 1 (TBK1) and have generalized the key structural elements associated with degradation activities. Compound 3i is a potent hit (TBK1 DC50 = 12 nM, Dmax = 96%) with excellent selectivity against a related kinase IKKε, which was further used as a chemical tool to assess TBK1 as a target in mutant K-Ras cancer cells.
Collapse
Affiliation(s)
- Andrew P Crew
- Arvinas LLC , 5 Science Park, New Haven, Connecticut 06511, United States
| | - Kanak Raina
- Arvinas LLC , 5 Science Park, New Haven, Connecticut 06511, United States
| | - Hanqing Dong
- Arvinas LLC , 5 Science Park, New Haven, Connecticut 06511, United States
| | - Yimin Qian
- Arvinas LLC , 5 Science Park, New Haven, Connecticut 06511, United States
| | - Jing Wang
- Arvinas LLC , 5 Science Park, New Haven, Connecticut 06511, United States
| | - Dominico Vigil
- Arvinas LLC , 5 Science Park, New Haven, Connecticut 06511, United States
| | | | - Brian D Hamman
- Arvinas LLC , 5 Science Park, New Haven, Connecticut 06511, United States
| | - Alicia Morgan
- Arvinas LLC , 5 Science Park, New Haven, Connecticut 06511, United States
| | - Caterina Ferraro
- Arvinas LLC , 5 Science Park, New Haven, Connecticut 06511, United States
| | - Kam Siu
- Arvinas LLC , 5 Science Park, New Haven, Connecticut 06511, United States
| | - Taavi K Neklesa
- Arvinas LLC , 5 Science Park, New Haven, Connecticut 06511, United States
| | - James D Winkler
- Arvinas LLC , 5 Science Park, New Haven, Connecticut 06511, United States
| | - Kevin G Coleman
- Arvinas LLC , 5 Science Park, New Haven, Connecticut 06511, United States
| | | |
Collapse
|
182
|
Abstract
This Perspective delineates how redox signaling affects the activity of specific enzyme isoforms and how this property may be harnessed for rational drug design. Covalent drugs have resurged in recent years and several reports have extolled the general virtues of developing irreversible inhibitors. Indeed, many modern pharmaceuticals contain electrophilic appendages. Several invoke a warhead that hijacks active-site nucleophiles whereas others take advantage of spectator nucleophilic side chains that do not participate in enzymatic chemistry, but are poised to bind/react with electrophiles. The latest data suggest that innate electrophile sensing-which enables rapid reaction with an endogenous signaling electrophile-is a quintessential resource for the development of covalent drugs. For instance, based on recent work documenting isoform-specific electrophile sensing, isozyme non-specific drugs may be converted to isozyme-specific analogs by hijacking privileged first-responder electrophile-sensing cysteines. Because this approach targets functionally relevant cysteines, we can simultaneously harness previously untapped moonlighting roles of enzymes linked to redox sensing.
Collapse
Affiliation(s)
| | - Yimon Aye
- Department of Chemistry & Chemical Biology, Cornell University, Ithaca, NY 14850, USA; Department of Biochemistry, Weill Cornell Medicine, New York, NY 10065, USA.
| |
Collapse
|
183
|
Abstract
Traditional pharmaceutical drug discovery is almost exclusively focused on directly controlling protein activity to cure diseases. Modulators of protein activity, especially inhibitors, are developed and applied at high concentration to achieve maximal effects. Thereby, reduced bioavailability and off-target effects can hamper compound efficacy. Nucleic acid-based strategies that control protein function by affecting expression have emerged as an alternative. However, metabolic stability and broad bioavailability represent development hurdles that remain to be overcome for these approaches. More recently, utilizing the cell's own protein destruction machinery for selective degradation of essential drivers of human disorders has opened up a new and exciting area of drug discovery. Small-molecule-induced proteolysis of selected substrates offers the potential of reaching beyond the limitations of the current pharmaceutical paradigm to expand the druggable target space.
Collapse
Affiliation(s)
- Philipp M Cromm
- Department of Molecular, Cellular & Developmental Biology, Yale University, New Haven, CT 06511, USA.
| | - Craig M Crews
- Department of Molecular, Cellular & Developmental Biology, Yale University, New Haven, CT 06511, USA; Department of Chemistry, Yale University, New Haven, CT 06511, USA; Department of Pharmacology, Yale University, New Haven, CT 06511, USA.
| |
Collapse
|
184
|
VanHook AM. Papers of note in
Science
355
(6330). Sci Signal 2017. [DOI: 10.1126/scisignal.aan2405] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
This week’s articles include several reviews on targeting signaling pathways to treat cancer, as well as research articles that highlight proteins that drive circadian clocks; how bacteriophages affect the virulence of pathogenic bacteria; a mobile transcription factor in plants; a secreted nucleoside that affects metabolism; and the effects of protein aggregation in aging yeast cells.
Collapse
|